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公开(公告)号：US11807790B2
公开(公告)日：2023-11-07
申请号：US17378869
申请日：2021-07-19
Inventor： Ren-Jie Weng , Wei-Hung Chiang
CPC classification number: C09K11/65 , B29B17/04 , C01B32/184 , B29B2017/0424 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C01B2204/22 , C01B2204/32 , C01P2004/64 , C01P2006/60
Abstract: The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.
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公开(公告)号：US20220298412A1
公开(公告)日：2022-09-22
申请号：US17378869
申请日：2021-07-19
Inventor： Ren-Jie Weng , Wei-Hung Chiang
IPC: C09K11/65 , C01B32/184 , C09K11/06 , B29B17/04
Abstract: The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.
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公开(公告)号：US20250073693A1
公开(公告)日：2025-03-06
申请号：US18426696
申请日：2024-01-30
Inventor： Wei-Hung Chiang , Darwin Kurniawan , Ren-Jie Weng
Abstract: A nano-catalysts synthesis method comprises steps of: using a microplasma device to perform a microplasma treatment on a precursor solution; and purifying the precursor solution after the microplasma treatment to obtain the nano-catalysts. The microplasma has a plasma size smaller than one millimeter on at least one dimension. The precursor solution comprises a precursor and a solvent. The present invention can achieve a nano-catalysts producing method at room temperature with high efficiency and yield rate through a simple and rapid process using extremely low amount of acid or alkali solvent without introducing any toxic solvents.
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公开(公告)号：US20240066494A1
公开(公告)日：2024-02-29
申请号：US17994704
申请日：2022-11-28
Inventor： Ren-Jie Weng , Wei-Hung Chiang
CPC classification number: B01J19/088 , H05H1/247 , B01J2219/00995 , B01J2219/0877
Abstract: The present invention provides a microplasma device and system thereof. The microplasma device comprises a reaction tank carrying with a reaction solution. A nanomaterial and its precursors are contained in the reaction solution. A first electrode is at least partially immersed in the reaction solution. A second electrode comprises a microplasma array component to eject microplasma array to the surface of the reaction solution. A power source is electrically connected between the first electrode and the second electrode. The present invention provides a novel microplasma array device to produce nanomaterial with increased yield rate. The microplasma array device can be multiplied by adding the outlet of the microplasma as desired to produce nanomaterial including but not limited to nano-metal particles, carbon quantum dots, silicon quantum dots and plasma-activated water with higher yield rate.
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