Patents by Inventor ZHI DANG

ZHI DANG 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).

  • Patent number: 12060283
    Abstract: A magnetic magnesium-manganese layered double metal oxide composite and preparation and application. A soluble magnesium salt and a soluble manganese salt are dissolved in water to obtain a magnesium-manganese salt complex liquid; and a soluble carbonate and a soluble hydroxide are dissolved in water to obtain a carbonate-hydroxide complex liquid; a ferroferric oxide powder is added to the carbonate-hydroxide complex liquid, and then ethanol is added for ultrasonic dispersion to obtain a dispersion liquid; then the magnesium-manganese salt complex liquid is added for aging, centrifuging, washing, drying, grinding for sieving, and calcinating at 250-550° C. to obtain a magnetic magnesium-manganese layered double metal oxide composite. The composite of the present invention has relatively strong magnetism to Cd removal, and is featured by high adsorption efficiency, rapid adsorption rate and stability.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 13, 2024
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Pingxiao Wu, Meiqing Chen, Zhi Dang, Nengwu Zhu
  • Publication number: 20220288567
    Abstract: Disclosed are a layered magnesium manganese composite material for copper ion adsorption, a preparation method therefor and an application thereof. The preparation method comprises: (1) dissolving a soluble magnesium salt and a soluble manganese salt in water to obtain a compound solution of the magnesium salt and the manganese salt; (2) dissolving a soluble carbonate and a soluble hydroxide in water to obtain a compound solution of the carbonate and the hydroxide; (3) dropwise adding the compound solution of the magnesium salt and the manganese salt into the compound solution obtained in step (2), stirring a mixed solution and allowing the mixed solution to age, and subjecting an obtained precipitate to centrifugation, washing, drying, grinding and sieving to obtain the layered magnesium manganese composite material for copper ion adsorption.
    Type: Application
    Filed: May 30, 2022
    Publication date: September 15, 2022
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Pingxiao WU, Meiqing CHEN, Zhi DANG, Feike PEI, Lu LIN
  • Publication number: 20220002167
    Abstract: A magnetic magnesium-manganese layered double metal oxide composite and preparation and application. A soluble magnesium salt and a soluble manganese salt are dissolved in water to obtain a magnesium-manganese salt complex liquid; and a soluble carbonate and a soluble hydroxide are dissolved in water to obtain a carbonate-hydroxide complex liquid; a ferroferric oxide powder is added to the carbonate-hydroxide complex liquid, and then ethanol is added for ultrasonic dispersion to obtain a dispersion liquid; then the magnesium-manganese salt complex liquid is added for aging, centrifuging, washing, drying, grinding for sieving, and calcinating at 250-550° C. to obtain a magnetic magnesium-manganese layered double metal oxide composite. The composite of the present invention has relatively strong magnetism to Cd removal, and is featured by high adsorption efficiency, rapid adsorption rate and stability.
    Type: Application
    Filed: October 25, 2019
    Publication date: January 6, 2022
    Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Pingxiao WU, Meiqing CHEN, Zhi DANG, Nengwu ZHU
  • Publication number: 20200101434
    Abstract: The present invention discloses a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons, and a preparation method and application thereof. The preparation method includes the following steps: (1) culturing Mycobacterium gilvum CP 13 in a bacteria culture liquid to obtain a bacterial broth, wherein the Mycobacterium gilvum CP 13 was deposited in China General Microbiological Culture Collection Center (CGMCC) on Jul. 22, 2013 with a CGMCC number of CGMCC No. 7963; and (2) applying a calcium alginate and chitosan to encapsulate the bacterial broth in a microcapsule through layer-by-layer self-assembly to produce a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons. The present invention produces a microcapsule material with the microorganic activity through layer-by-layer self-assembly, which has superior adaptability to the environment and good ability to reduce pollution containing polycyclic aromatic hydrocarbons.
    Type: Application
    Filed: November 4, 2019
    Publication date: April 2, 2020
    Inventors: Zhi Dang, Chen Yang, Fucai Deng, Guosheng Sun, Huixing Huang, Chuling Guo, Guining Lu, Xiaoyun Yi
  • Patent number: 10493418
    Abstract: The present invention discloses a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons, and a preparation method and application thereof. The preparation method comprises the following steps: (1) culturing mycobacterium gilvum CP 13 in a bacteria culture liquid to obtain a bacterial broth, wherein the mycobacterium gilvum CP 13 was deposited in China General Microbiological Culture Collection Center (CGMCC) on Jul. 22, 2013 with a CGMCC number of CGMCC No. 7963; and (2) applying a calcium alginate and chitosan to encapsulate the bacterial broth in a microcapsule through layer-by-layer self-assembly to produce a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons. The present invention produces a microcapsule material with the microorganic activity through layer-by-layer self-assembly, which has superior adaptability to the environment and good ability to reduce pollution containing polycyclic aromatic hydrocarbons.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: December 3, 2019
    Assignees: South China University of Technology, Guangdong Yue Gang Water Supply Co., Ltd.
    Inventors: Chen Yang, Zhi Dang, Fucai Deng, Guosheng Sun, Huixing Huang, Chuling Guo, Guining Lu, Xiaoyun Yi
  • Patent number: 10174306
    Abstract: Provided are a method for preparing kaolin immobilized GY2B bacteria and use thereof.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: January 8, 2019
    Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
    Inventors: Pingxiao Wu, Yuewu Li, Zhi Dang, Nengwu Zhu
  • Publication number: 20180243716
    Abstract: The present invention discloses a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons, and a preparation method and application thereof. The preparation method comprises the following steps: (1) culturing mycobacterium gilvum CP 13 in a bacteria culture liquid to obtain a bacterial broth, wherein the mycobacterium gilvum CP 13 was deposited in China General Microbiological Culture Collection Center (CGMCC) on Jul. 22, 2013 with a CGMCC number of CGMCC No. 7963; and (2) applying a calcium alginate and chitosan to encapsulate the bacterial broth in a microcapsule through layer-by-layer self-assembly to produce a microcapsule material capable of reducing pollution containing polycyclic aromatic hydrocarbons. The present invention produces a microcapsule material with the microorganic activity through layer-by-layer self-assembly, which has superior adaptability to the environment and good ability to reduce pollution containing polycyclic aromatic hydrocarbons.
    Type: Application
    Filed: December 31, 2015
    Publication date: August 30, 2018
    Inventors: Chen Yang, Zhi Dang, Fucai Deng, Guosheng Sun, Huixing Huang, Chuling Guo, Guining Lu, Xiaoyun Yi
  • Publication number: 20170283786
    Abstract: Provided are a method for preparing kaolin immobilized GY2B bacteria and use thereof.
    Type: Application
    Filed: December 3, 2014
    Publication date: October 5, 2017
    Applicant: SOUTH CINA UNIVERSITY OF TECHNOLOGY
    Inventors: Pingxiao WU, YUEWU LI, ZHI DANG, NENGWU ZHU