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公开(公告)号：US11618007B2
公开(公告)日：2023-04-04
申请号：US17960841
申请日：2022-10-06
摘要： A method for producing a modified sawdust sorbent. The method involves sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields a modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. A method of using the modified sawdust sorbent for organic dye removal from water is included.
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公开(公告)号：US11654417B2
公开(公告)日：2023-05-23
申请号：US17960843
申请日：2022-10-06
CPC分类号： B01J20/3078 , B01J20/28016 , B01J20/28059 , B01J20/3021 , B01J20/3071 , B01J20/3231 , B01J20/3242 , B01J20/3248 , C02F1/288 , C02F1/58 , B01J20/22 , B01J20/24 , B01J20/305 , B27L11/06
摘要： A method for producing a modified sawdust sorbent. The method involves sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields a modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. A method for organic dye removal from water includes using the modified sawdust sorbent to absorb dyes from water.
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公开(公告)号：US11471858B2
公开(公告)日：2022-10-18
申请号：US16737554
申请日：2020-01-08
摘要： A method for producing modified sawdust sorbent that includes sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. A method of using the modified sawdust sorbent for organic dye removal from water includes contacting dye contaminated water with the modified sawdust sorbent and forming a dye-impregnated sorbent and decontaminated water.
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公开(公告)号：US11660583B2
公开(公告)日：2023-05-30
申请号：US17960852
申请日：2022-10-06
CPC分类号： B01J20/3078 , B01J20/28016 , B01J20/28059 , B01J20/3021 , B01J20/3071 , B01J20/3231 , B01J20/3242 , B01J20/3248 , C02F1/288 , C02F1/58 , B01J20/22 , B01J20/24 , B01J20/305 , B27L11/06
摘要： A method for producing a modified sawdust sorbent. The method involves sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields a modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. A method for organic dye removal from water includes using the modified sawdust sorbent to absorb dyes from water.
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公开(公告)号：US10913050B1
公开(公告)日：2021-02-09
申请号：US16990123
申请日：2020-08-11
摘要： A method for producing a modified sawdust sorbent. The method involves sulfonating sawdust with sulfuric acid and oxidizing the sulfonated sawdust with hydrogen peroxide. The method yields a modified sawdust sorbent containing sulfonated and oxidized cellulose. The modified sawdust sorbent has a higher surface area, higher organic dye adsorption capacity, and more rapid organic dye adsorption rate than unmodified sawdust. Also disclosed is a method of using the modified sawdust sorbent for organic dye removal from water.
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