公开(公告)号：US10026970B1

公开(公告)日：2018-07-17

申请号：US15839693

申请日：2017-12-12

Applicant: KING SAUD UNIVERSITY

Inventor： Abdullah M. Al-Enizi ,  Tansir Ahamad ,  Saad M. Alshehri ,  Mu Naushad

IPC: H01M4/92 ,  C08G12/30 ,  H01M8/1018

Abstract: The oxygen reduction reaction electrocatalyst is a Pt/N/C electrocatalyst that provides an efficient ORR catalyst suitable for use in polymer electrolyte membrane (PEM) fuel cells, for example. The oxygen reduction reaction electrocatalyst is in the form of platinum nanoparticles embedded in a nitrogen-enriched mesoporous carbon matrix, particularly a nitrogen-enriched graphite matrix. The nitrogen-enriched graphite matrix has an average surface area of 240.4 m2/g, and the platinum nanoparticles each have an average diameter between 10 nm and 12 nm.

公开(公告)号：US09334176B1

公开(公告)日：2016-05-10

申请号：US14637366

申请日：2015-03-03

Applicant: KING SAUD UNIVERSITY

Inventor： Saad M. Alshehri ,  Tansir Ahamad ,  Mu Naushad ,  Zeid A. Al-Othman ,  Ali Aldalbahi

IPC: C02F1/28 ,  C02F1/48 ,  B01J20/30 ,  B01J20/32 ,  B01J20/28 ,  B01J20/26 ,  B01J20/06 ,  C02F101/30

CPC classification number: C02F1/285 ,  B01J20/06 ,  B01J20/26 ,  B01J20/28009 ,  B01J20/28019 ,  B01J20/3071 ,  B01J20/3278 ,  C02F1/288 ,  C02F1/488 ,  C02F2101/308 ,  C02F2303/16

Abstract: The method for removing organic dyes from wastewater includes: (i) placing a magnetic polymer microsphere into contact with wastewater contaminated with organic dyes; (ii) permitting the organic dyes to adsorb onto the magnetic polymer microsphere; and removing the magnetic polymer microsphere using an external magnetic field applied by a magnet. The magnetic polymer microsphere has a ferromagnetic core surrounded by an adsorbent polymer.

Abstract translation: 从废水中除去有机染料的方法包括：（i）将磁性聚合物微球放置成与有机染料污染的废水接触; （ii）允许有机染料吸附在磁性聚合物微球上; 并使用由磁体施加的外部磁场去除磁性聚合物微球。 磁性聚合物微球具有由吸附剂聚合物包围的铁磁性核心。

公开(公告)号：US11618004B1

公开(公告)日：2023-04-04

申请号：US16912201

申请日：2020-06-25

Applicant: KING SAUD UNIVERSITY

Inventor： Mu Naushad ,  Tansir Ahamad ,  Ayoub Abdullah Alqadami ,  Ayman Abdelghafar Ahmed ,  Zeid Abdullah Alothman

IPC: B01J20/20 ,  B01J20/30 ,  B01J20/28 ,  C02F1/28 ,  C02F101/30

Abstract: A melamine-formaldehyde derived porous carbon adsorbent may be prepared from melamine-formaldehyde derived porous carbon disposable products. The melamine-formaldehyde derived porous carbon effectively removes organic pollutants from aqueous media. Parameters of contact time, solution pH, initial adsorbate concentration and desorption rate affect efficacy. Adsorption capacities of exemplary melamine-formaldehyde derived porous carbon for MG and MB dyes at 298 K were up to 25 mg/g and 35 mg/g, respectively.

公开(公告)号：US09987617B1

公开(公告)日：2018-06-05

申请号：US15722898

申请日：2017-10-02

Applicant: KING SAUD UNIVERSITY

Inventor： Mu Naushad ,  Ayoub Abdullah Alqadami ,  Tansir Ahamad ,  Zeid Abdullah Alothman ,  Saad M. Alshehri

IPC: B01D39/00 ,  C02F1/28 ,  B01J20/22 ,  B01D15/00 ,  B01J20/28 ,  C07F15/02 ,  B01J20/06 ,  C02F1/66 ,  B01J20/32 ,  B01D24/00 ,  B01J20/00 ,  C02F101/30

CPC classification number: B01J20/28009 ,  B01J20/06 ,  B01J20/22 ,  B01J20/28016 ,  B01J20/3293 ,  C02F1/285 ,  C02F1/288 ,  C02F1/66 ,  C02F2101/308 ,  C02F2303/16 ,  C07F15/025

Abstract: Carboxylic functionalized magnetic nanocomposites can include a magnetic compound, such as Fe3O4, that is encapsulated by a plurality of amino organosilane groups. The organosilane groups can include 3-[2-(2-Aminoethylamino)ethylamino] propyl-trimethoxysilane (TAS). At least some of the organosilane groups can have amino and carboxylic acid substituents. The organic pollutants can include malachite green dye. The carboxylic functionalized magnetic nanocomposites can adsorb dye from solution, such as wastewater. The carboxylic functionalized magnetic nanocomposites can be separated from the solution using an external magnetic material.

公开(公告)号：US09643861B1

公开(公告)日：2017-05-09

申请号：US15364233

申请日：2016-11-29

Applicant: KING SAUD UNIVERSITY

Inventor： Saad M. Alshehri ,  Tansir Ahamad ,  Mu Naushad ,  Jahangeer Ahmed ,  Zeid A. Al-Othman

IPC: C02F1/28 ,  B01J20/22 ,  B01J20/30 ,  C02F1/66 ,  C02F101/30 ,  C02F103/30 ,  C02F103/24

CPC classification number: C02F1/286 ,  B01J20/22 ,  B01J20/264 ,  B01J20/3071 ,  B01J20/3425 ,  B01J20/3475 ,  C02F2101/308 ,  C02F2103/24 ,  C02F2103/28 ,  C02F2103/30 ,  C02F2303/16

Abstract: A method for preparing an adsorbent for removing organic dyes from water includes providing a volume of egg white, adding a volume of formaldehyde to the volume of egg white to form a mixture, maintaining a pH of the mixture at about pH 8.5, stirring the mixture until a viscous product is formed, and washing and drying the product to provide the adsorbent.

公开(公告)号：US09624114B1

公开(公告)日：2017-04-18

申请号：US15364221

申请日：2016-11-29

Applicant: KING SAUD UNIVERSITY

Inventor： Saad M. Alshehri ,  Tansir Ahamad ,  Mu Naushad ,  Jahangeer Ahmed ,  Zeid A. Al-Othman

IPC: C02F1/28 ,  B01J20/22 ,  B01J20/28 ,  C02F101/34 ,  C02F101/38

CPC classification number: C02F1/286 ,  B01J20/22 ,  B01J20/28061 ,  C02F2101/345 ,  C02F2101/38

Abstract: A method for preparing an adsorbent for removing organic dyes from water includes reacting egg white with hydrochloric acid. The reaction can include mixing egg white with water to form a solution, and adding the acid to the solution to form a precipitate. The precipitate can be filtered, washed, and dried to provide the adsorbent. The adsorbent can be contacted with wastewater contaminated with organic pollutants to remove the organic pollutants from the wastewater. The organic pollutants can include p-nitrophenol.