The distinct role of boron doping in Sn3O4 microspheres for synergistic removal of phenols and Cr(VI) in simulated wastewater,Environmental Science: Nano

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The distinct role of boron doping in Sn3O4 microspheres for synergistic removal of phenols and Cr(VI) in simulated wastewater
Environmental Science: Nano ( IF 5.8 ) Pub Date : 2019/11/29 , DOI: 10.1039/c9en00899c
Changlin Yu _{1,

2,

3,

4,

5} , Debin Zeng _{1,

2,

3,

4,

5} , Qizhe Fan _{1,

2,

3,

4,

5} , Kai Yang _{5,

6,

7,

8} , Julan Zeng _{5,

9,

10,

11} , Longfong Wei _{1,

2,

3,

4,

5} , Junhui Yi _{1,

2,

3,

4,

5} , Hongbing Ji _{1,

2,

3,

4,

5}

Affiliation

A powerful photocatalyst is the key for photocatalytic environmental purification via sunlight harvesting and utilization. In this work, novel boron doped Sn₃O₄ microspheres constructed from nanoplates were designed and fabricated. Density functional theory (DFT) studies were carried out to investigate the boron doping mechanism, in which DFT predicted that boron doping would enhance the light harvesting capability and the photo-response of Sn₃O₄, which was proved by diffuse reflectance spectra (DRS) and transient photocurrent responses. Attributed to its unique porous structure, and enhanced light harvesting and high carrier utilization capabilities, the boron doped Sn₃O₄ microsphere exhibited high efficiency for Cr(IV) removal and azo dyestuff degradation. Moreover, an unexpected synergistic effect upon simultaneous removal of phenols (phenol, bisphenol A and p-chlorophenol) and Cr(VI) was observed.

中文翻译：

硼掺杂在Sn3O4微球中协同去除模拟废水中的酚和Cr（VI）的独特作用

强大的光催化剂是通过收集和利用阳光来进行光催化环境净化的关键。在这项工作中，设计并制造了由纳米板构造的新型硼掺杂Sn ₃ O ₄微球。进行了密度泛函理论（DFT）研究，研究了硼掺杂机理，其中DFT预测硼掺杂将增强Sn ₃ O ₄的光捕获能力和光响应，这由漫反射光谱（DRS）证明。）和瞬态光电流响应。硼掺杂的Sn ₃ O归因于其独特的多孔结构，增强的光收集能力和较高的载流子利用能力_4个微球对Cr（ IV）的去除和偶氮染料的降解表现出很高的效率。此外，在同时除去酚（苯酚，双酚A和对氯苯酚）和Cr（ VI）时，观察到了出乎意料的协同作用。

更新日期：2020-02-13

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