Template-free synthesis of nanoparticle-built MgO and Zn-doped MgO hollow microspheres with superior performance for Congo red adsorption from water

2018 ◽  
Vol 47 (48) ◽  
pp. 17421-17431 ◽  
Author(s):  
Dan Dai ◽  
Qian Ma ◽  
Yanyan Pei ◽  
Zhong Zheng ◽  
Liangjie Yuan
Keyword(s):  
Congo Red ◽  
Hollow Microspheres ◽  
Superior Performance ◽  
Template Free

A template-free route was developed to synthesize MgO and Zn-doped MgO hollow microspheres with ultrahigh adsorption performances and excellent reusability.

scholarly journals Template-Free Fabrication of Bi2WO6 Hierarchical Hollow Microspheres with Visible-Light-Driven Photocatalytic Activity

Energies ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 764 ◽  
Author(s):  
Yuxue Zhou ◽  
Xiangdong Meng ◽  
Ling Tong ◽  
Xianghua Zeng ◽  
Xiaobing Chen
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hollow Microspheres ◽  
Visible Light Driven ◽  
Template Free

scholarly journals Hierarchically porous SiO2/C hollow microspheres: a highly efficient adsorbent for Congo Red removal

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19852-19860 ◽  
Author(s):  
Jie Wang ◽  
Longya Xiao ◽  
Shuai Wen ◽  
Nuo Chen ◽  
Zhiyin Dai ◽  
...  
Keyword(s):  
Porous Structure ◽  
Surface Area ◽  
Congo Red ◽  
Hollow Microspheres ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Highly Efficient ◽  
Porous Sio2 ◽  
Adsorption Amount ◽  
Efficient Adsorbent

Hierarchically porous SiO2/C hollow microspheres (HPSCHMs) were synthesized. Its surface area is up to 1154 m2g–1. Hierarchically porous structure facilitates diffusion of adsorbate. Its maximum adsorption amount for Congo Red is up to 2512 mg g–1.

Fe induction strategy for hollow porous N doped carbon with superior performance in oxygen reduction

2021 ◽  
Author(s):  
Guanying Ye ◽  
Siyuan Wang ◽  
Suqin Liu ◽  
Zhen He ◽  
Jue Wang
Keyword(s):  
Oxygen Reduction ◽  
Porous Carbon ◽  
Superior Performance ◽  
Induction Strategy ◽  
Template Free ◽  
Dual Metal ◽  
Zeolitic Imidazole Frameworks

An Fe induction strategy is introduced to achieve template-free synthesis of Co, Fe dual-metal N-codoped hollow porous carbon from zeolitic imidazole frameworks, which is beneficial for the exposure of highly...

scholarly journals Facile template-free synthesis of hierarchically porous NiO hollow architectures with high-efficiency adsorptive removal of Congo red

2019 ◽  
Vol 26 (6) ◽  
pp. 1743-1753 ◽  
Author(s):  
Hanmei Hu ◽  
Chonghai Deng ◽  
Mei Sun ◽  
Kehua Zhang ◽  
Man Wang ◽  
...  
Keyword(s):  
Congo Red ◽  
High Efficiency ◽  
Hierarchically Porous ◽  
Adsorptive Removal ◽  
Template Free

Template-free synthesized 3D macroporous MXene with superior performance for supercapacitors

2019 ◽  
Vol 16 ◽  
pp. 315-321 ◽  
Author(s):  
Xuefeng Zhang ◽  
Xudong Liu ◽  
Shangli Dong ◽  
Jianqun Yang ◽  
Yong Liu
Keyword(s):  
Superior Performance ◽  
Template Free

Improved adsorption of Congo red by nanostructured flower-like Fe(II)–Fe(III) hydroxy complex

2018 ◽  
Vol 78 (3) ◽  
pp. 506-514
Author(s):  
Xiaoyan Sun ◽  
Zhongwu Liu ◽  
Zhigang Zheng ◽  
Hongya Yu ◽  
Dechang Zeng
Keyword(s):  
Adsorption Capacity ◽  
Anion Exchange ◽  
Electrostatic Interaction ◽  
Congo Red ◽  
Removal Rate ◽  
Superior Performance ◽  
Facile Synthesis ◽  
Similar Reduction ◽  
Microwave Assisted ◽  
Strong Adsorption

Abstract Amorphous Fe(II)–Fe(III) hydroxy complex with flower-like nanostructure was synthesized by ferric reduction using a microwave-assisted ethylene glycol approach. Here we investigated the correlation between its chemical composition and the removal rate for Congo red (CR) dye. The results showed that the amorphous complex had similar reduction and anion exchange capacities to the green rust. Due to the synergistic effect of attractive electrostatic interaction, anion exchange, ferrous redox and hydrogen bonding, the Fe(II)–Fe(III) hydroxy complex exhibited strong adsorption of CR with an estimated adsorption capacity up to 513 mg g−1. In contrast, the Fe(III) hydroxy complex had an adsorption capacity of 296 mg g−1 because of the predominant mechanism based on the electrostatic interaction. The present study provides a facile synthesis of nanostructured iron hydroxy complex, with superior performance in adsorbing CR.

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