Patents by Inventor Mohammed Ashraf Gondal
Mohammed Ashraf Gondal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11579130Abstract: A hydrogen sensor that efficiently detects hydrogen gas at room temperature comprising a gold decorated reduced graphene oxide/zinc oxide (Au/rGO/ZnO) heterostructured composite, methods for making this sensor and a method for sensitive room temperature detection of hydrogen using the sensor.Type: GrantFiled: December 23, 2019Date of Patent: February 14, 2023Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Qasem Ahmed Drmosh, Zain Hassan Yamani, Mohammad Kamal Hossain, Mohammed Ashraf Gondal, Abdulmajeed Hasan Hendi, Redhwan Abdo Moqbel
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Publication number: 20210190721Abstract: A hydrogen sensor that efficiently detects hydrogen gas at room temperature comprising a gold decorated reduced graphene oxide/zinc oxide (Au/rGO/ZnO) heterostructured composite, methods for making this sensor and a method for sensitive room temperature detection of hydrogen using the sensor.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Qasem Ahmed Drmosh, Zain Hassan Yamani, Mohammad Kamal Hossain, Mohammed Ashraf Gondal, Abdulmajeed Hasan Hendi, Redhwan Abdo Moqbel
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Patent number: 10323318Abstract: Ag/C crystalline nanocomposite films and a method of forming the films with controllable Ag/C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal/Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.Type: GrantFiled: October 15, 2018Date of Patent: June 18, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammed Ashraf Gondal, Radek Fajgar, Zain Hassan Abdallah Yamani, Xiaofeng Chang
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Patent number: 10210999Abstract: A semiconducting nanocomposite and a dye-sensitized solar cell including the same, wherein the semiconducting nanocomposite comprises nanocomposite particles selected from the group consisting of TiO2/ZnO/CdS, TiO2/ZnO/CdSe, TiO2/ZnO/PbS, TiO2/ZnO/PbSe, TiO2/ZnS/CdSe, TiO2/ZnS/PbS, TiO2/ZnS/PbSe, WO3/ZnO/CdSe, Nb2O5/ZnO/CdSe, and combinations thereof. Various embodiments of each component of the dye-sensitized solar cell, including electrodes, conductive layers, dyes, and electrolytes are also provided.Type: GrantFiled: December 27, 2017Date of Patent: February 19, 2019Assignees: Imam Abdulrahman Bin Faisal University, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Jwaher Mohammed Alghamdi, Mohammed Ashraf Gondal
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Publication number: 20190048461Abstract: Ag/C crystalline nanocomposite films and a method of forming the films with controllable Ag/C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal/Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.Type: ApplicationFiled: October 15, 2018Publication date: February 14, 2019Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammed Ashraf Gondal, Radek Fajgar, Zain Hassan Abdallah Yamani, Xiaofeng Chang
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Patent number: 10174418Abstract: Ag/C crystalline nanocomposite films and a method of forming the films with controllable Ag/C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal/Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.Type: GrantFiled: October 10, 2018Date of Patent: January 8, 2019Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammed Ashraf Gondal, Radek Fajgar, Zain Hassan Abdallah Yamani, Xiaofeng Chang
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Patent number: 10125418Abstract: Ag/C crystalline nanocomposite films and a method of forming the films with controllable Ag/C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal/Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.Type: GrantFiled: January 7, 2016Date of Patent: November 13, 2018Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammed Ashraf Gondal, Radek Fajgar, Zain Hassan Abdallah Yamani, Xiaofeng Chang
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Publication number: 20180182562Abstract: A semiconducting nanocomposite and a dye-sensitized solar cell including the same, wherein the semiconducting nanocomposite comprises nanocomposite particles selected from the group consisting of TiO2/ZnO/CdS, TiO2/ZnO/CdSe, TiO2/ZnO/PbS, TiO2/ZnO/PbSe, TiO2/ZnS/CdSe, TiO2/ZnS/PbS, TiO2/ZnS/PbSe, WO3/ZnO/CdSe, Nb2O5/ZnO/CdSe, and combinations thereof. Various embodiments of each component of the dye-sensitized solar cell, including electrodes, conductive layers, dyes, and electrolytes are also provided.Type: ApplicationFiled: December 27, 2017Publication date: June 28, 2018Applicant: Imam Abdulrahman Bin Faisal UniversityInventors: Jwaher Mohammed ALGHAMDI, Mohammed Ashraf GONDAL
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Patent number: 9505635Abstract: The wastewater filtration system and method relates to systems and methods that use Ruba Al-Khali Saudi sand as the filtration media in systems for treating industrial wastewater. Ruba Al-Khali Saudi sand is effective in removing organic dyes, particularly rhodamine B, from the wastewater. The method includes bringing wastewater having an organic dye constituent into contact with the Saudi sand for a period of time sufficient to adsorb the organic dye. The system may include a batch reactor, such as a fixed bed or moving bed reactor, or a continuous flow reactor, such as a column reactor. When a batch reactor is used, the method may benefit from shaking or agitating the filtration media, particularly in the dark or under low ambient light conditions. The method may include regenerating the Saudi sand after use by heating the filtration media.Type: GrantFiled: December 22, 2014Date of Patent: November 29, 2016Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammed Ashraf Gondal, Xiaofeng Chang, Mohammad Ashraf Ali, Mohamed Abdulkader Dastageer, Syed M. Zubair, John H. Lienhard, V
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Publication number: 20160222502Abstract: Ag/C crystalline nanocomposite films and a method of forming the films with controllable Ag/C molar ratios using a concurrent excimer laser-induced ablation of a silver target and a hydrocarbon gas under a vacuum atmosphere. Metal/Carbon nanocomposites prepared by concurrent irradiation of a metal target, in the presence of a hydrocarbon gas, during an excimer laser induced process.Type: ApplicationFiled: January 7, 2016Publication date: August 4, 2016Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammed Ashraf GONDAL, Radek FAJGAR, Zain Hassan Abdallah YAMANI, Xiaofeng CHANG
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Publication number: 20150175444Abstract: The wastewater filtration system and method relates to systems and methods that use Ruba Al-Khali Saudi sand as the filtration media in systems for treating industrial wastewater. Ruba Al-Khali Saudi sand is effective in removing organic dyes, particularly rhodamine B, from the wastewater. The method includes bringing wastewater having an organic dye constituent into contact with the Saudi sand for a period of time sufficient to adsorb the organic dye. The system may include a batch reactor, such as a fixed bed or moving bed reactor, or a continuous flow reactor, such as a column reactor. When a batch reactor is used, the method may benefit from shaking or agitating the filtration media, particularly in the dark or under low ambient light conditions. The method may include regenerating the Saudi sand after use by heating the filtration media.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: MOHAMMED ASHRAF GONDAL, XIAOFENG CHANG, MOHAMMAD ASHRAF ALI, MOHAMED ABDULKADER DASTAGEER, SYED M. ZUBAIR, JOHN H. LIENHARD, V
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Publication number: 20150174567Abstract: The hybrid photocatalyst for wastewater remediation is a composite of rhodamine B and BiOBr. The rhodamine B has a concentration between about 0.1 wt % and about 1 wt % of the overall photocatalyst. The hybrid photocatalyst is made by immersing a BiOBr semiconductor in an aqueous rhodamine B solution to form the hybrid photocatalyst by sorption of the rhodamine B by the BiOBr semiconductor. In use, the hybrid photocatalyst is added to wastewater containing at least one contaminant, such as methyl orange (sodium 4-[(4-dimethylamino)phenyldiazenyl]benzenesulfonate), to form a suspension of the hybrid photocatalyst and the at least one contaminant. The suspension is then exposed to visible to light to form a slurry containing a reaction mixture in the wastewater. The slurry is then filtered to remove the reaction mixture.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: MOHAMMED ASHRAF GONDAL, XIAOFENG CHANG, MOHAMMAD ASHRAF ALI, MOHAMED ABDULKADER DASTAGEER, SYED M. ZUBAIR, JOHN H. LIENHARD, V
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Patent number: 9034169Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.Type: GrantFiled: March 14, 2013Date of Patent: May 19, 2015Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mohammed Ashraf Gondal, Qasem Ahmed Qasem Drmosh, Z. H. Yamani, Tawfik Abdo Saleh
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Publication number: 20130203178Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.Type: ApplicationFiled: March 14, 2013Publication date: August 8, 2013Inventors: MOHAMMED ASHRAF GONDAL, QASEM AHMED QASEM DRMOSH, Z.H. YAMANI, TAWFIK ABDO SALEH
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Patent number: 8460538Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.Type: GrantFiled: June 14, 2010Date of Patent: June 11, 2013Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammed Ashraf Gondal, Qasem Ahmedqasem Drmosh, Z. H. Yamani, Tawfik Abdo Saleh
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Publication number: 20110303555Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.Type: ApplicationFiled: June 14, 2010Publication date: December 15, 2011Inventors: Mohammed Ashraf Gondal, Qasem Ahmedqasem Drmosh, Z.H. Yamani, Tawfik Abdo Saleh
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Publication number: 20110303050Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.Type: ApplicationFiled: July 19, 2010Publication date: December 15, 2011Inventors: Mohammed Ashraf Gondal, Qasem Ahmed Qasem Drmosh, Z. H. Yamani, Tawfik Abdo Saleh