Page 82 - 201808
P. 82
·1330· 精细化工 FINE CHEMICALS 第 35 卷
Ni/SBA-15 catalysts for methane dry reforming[J]. Fine Chemicals
(精细化工), 2016, 33(1): 42-48.
[2] Li Ming Yang (李明阳), Li Tao (李涛), Fang Ding Ye (房鼎业).
Effect of Fe modified Cu/Zn/MgO catalyst on the synthesis of lower
alcohol from syngas[J]. Fine Chemicals (精细化工), 2015, 32(6):
646-651.
[3] Qi J, Yue S, She Z. Effect of fluorine additive on CeO 2(ZrO 2)/TiO 2
for selective catalytic reduction of NO by NH 3[J]. J Colloid Interface
Sci, 2016, 487(11): 401-409.
[4] Wang Ye (王晔). Removal of typical trace pollutant in water with
TiO 2 hybrid photocatalytic inorganic/organic ultrafiltration
membrane[D]. Lanzhou Jiaotong University (兰州交通大学), 2014.
[5] Dang Hai Feng (党海峰). Modification of nano-TiO 2 and novel red
phosphorous photocatalysts for photocatalytic hydrogen production
图 8 N-Al/TiO 2 催化剂机理图 from water[D]. South China Unversity of Technology (华南理工大
Fig.8 N-Al/TiO 2 catalyst mechanism diagram 学), 2014.
[6] Nilchi A, Garmarodi S R, Darzi S J. Adsorption behavior of nano
2+
sized sol-gel derived TiO 2-SiO 2 binary oxide in removing Pb metal
由图 8 可见,Al 元素的掺杂使导带底部减小, ions[J]. Separation Science and Technology, 2010, 45(6): 801-808.
N 元素的掺入使价带顶部有所增加,通过 N、Al 元 [7] Sun Ming Xuan (孙明轩). Photoelectrochemical and photocatalytic
properties of modified nanostructured TiO 2 photoanode[J]. Fudan
素协同作用,使共掺杂 TiO 2 催化剂在可见光下能带 University (复旦大学), 2013.
[8] Olsen R E, Alam T M, Bartholomew C H, et al. Structure analysis of
带隙变窄。由 XPS 表征可知,N、Al 元素掺杂引发 Al-modified TiO 2 nanocatalyst supports[J]. Journal of Physical
结合能发生变化,从而催化剂表面出现一种光电子 Chemistry C, 2013, 118(17): 9176-9186.
[9] Ju Jiang Yue (鞠江月), Wang Ya Ming (王亚明), Jiang Li Hong (蒋
捕获的特征,光催化效率提高。又由于可见光照射, 丽红), et al. Hydrogenation of turpentine catalyzed by NiCoB/TiO 2
amorphous alloy catalysts[J]. Fine Chemicals (精细化工), 2017,
价带(VB)中的电子激发到导带(CB)中,增加 34(1): 66-73.
了电子和空穴分离,增加了催化剂的氧化还原能力。 [10] Wang Yang (汪杨), Xiong Dao Ling (熊道陵), Zhang Jian Ping (张
建平), et al. Preparation and characterization of solid acid catalyst
2
催化剂与表面吸附的 H 2 O 和 e 形成具有强氧化性 SO 4 /C-TiO 2-CeO 2[J]. Fine Chemicals (精细化工), 2017, 34(1): 80-86.
[11] Mohamed M A, Salleh W N W, Jaafar J, et al.Photodegradation of
的·OH,进一步增强了催化剂对染料的光催化降解 phenol by N-doped TiO 2 anatase/rutile nanorods assembled
能力。该结果与表征结果以及对染料的降解结果相 microsphere under UV and visible light irradiation[J]. Materials
Chemistry and Physics, 2015, 162(15): 113-123.
吻合。发结合能发生变化,从而催化剂表面出现一 [12] Murashkina A A, Murzin P D, Rudakova A V, et al. Influence of the
种光电子捕获的特征,光催化效率提高。又由于可 dopant concentration on the photocatalytic activity: Al-doped TiO 2
[J]. The Journal of Physical Chemistry C, 2015, 119(44): 24695-24703.
见光照射,价带(VB)中的电子激发到导带(CB) [13] Zhao Fang (赵芳), Ni Gang (倪刚), Zhao Ya Jing (赵雅琼), et al.
Preparation and photocatalytic activity of TiO 2/SiO 2 nanoparticles
中,增加了电子和空穴分离,增加了催化剂的氧化 Co-doped with iro and nitrogen[J]. Journal of the Chinese Cerami
还原能力。催化剂与表面吸附的 H 2 O 和 e 形成具有 Society (硅酸盐学报), 2014, 42(6): 802-807.
[14] Jirapat A, Puangrat K. Photocatalytic degradation of p, p'-DDT under
强氧化性的·OH,进一步增强了催化剂对染料的光 UV and visible light using interstitial N-doped TiO 2[J]. Journal of
Environmental Science and Health, Part B, 2015, 50(4): 247-260.
催化降解能力。该结果与表征结果以及对染料的降 [15] Zhou Yu Wen (周郁文), Su Tong Ming (苏通明), Jiang Yue Xiu (蒋
解结果相吻合。 月秀), et al. Effect of Co loading amount on catalytic performance of
Co/TiO 2 catalysts for CO 2 methanation[J]. Fine Chemicals (精细化
工), 2018, 35(1): 72-80.
3 结论 [16] Zheng Yong Jie (郑永杰), Hu Yi (胡义), Jing Tao (荆涛), et al.
Calculations on the electronic structures of N-Al co-doped anatase
TiO 2 by GGA+U methods[J]. Journal of Materials Science &
通过掺杂 N、Al 元素对 TiO 2 催化剂进行改性, Engineering (材料科学与工程学报), 2015, 33(6): 791-794, 926.
[17] Qian W, Greaney P A, Fowler S, et al. Low temperature nitrogen
其结果表明:N、Al 两种元素已成功掺入 TiO 2 晶格 doping in ammonia solution for production of N-doped TiO 2 hybridized
中,N、Al 元素的掺杂抑制了 TiO 2 晶粒的生长,光 graphene as a highly efficient photocatalyst for water treatment[J].
ACS Sustainable Chemistry & Engineering, 2014, 2(7): 1802-1810.
生电子-空穴重组率降低,在可见漫反射检测中发生 [18] Zhao Ya Dong (赵亚东), Gao Lei (郜蕾), Gao Jian (高健), et al.
Synthesis of methyl oleate using a silica-immobilized SO 3H -
红移,禁带宽度降低,拓宽了可见光区的吸收范围, functionalized ionic liquid as an efficient catalyst[J], Fine Chemicals
为光催化效率的提高提供了有利条件;当 N 掺杂量 (精细化工), 2018, 35(1): 81-86, 180.
[19] Wang Hong Xia (王红侠), Li Xin Xing (李新星), Tang Zheng Wei
为 5.29%,Al 掺杂量为 1.11%时,共掺杂 TiO 2 催化 (唐正伟), et al. Synthesis and properties of TiO 2 hollow microspheres
[J]. Fine Chemicals (精细化工), 2017, 34(12): 1329-1333.
剂对染料的降解效果最佳,其脱色率可达 70%左右, [20] Sun S, Gao P, Yang Y, et al. N-doped TiO 2 nanobelts with coexposed
光催化活性较其他三种明显增强,证明 N、Al 共掺 (001) and (101) facets and their highly efficient visible-light-driven
photocatalytic hydrogen production[J]. Acs Applied Materials &
杂有利于提高二氧化钛的光催化活性。本文中 TiO 2 Interfaces, 2016, 8(28): 18126-18131.
[21] Tong T, Anas S, Wu J, et al. Effects of material morphology on the
催化剂的光催化效果明显提高,但催化剂的团聚现
phototoxicity of nano-TiO 2 to bacteria[J]. Environmental Science &
象较为明显,不能使染料完全降解,所以,制备出具 Technology, 2013, 47(21): 12486-12495.
[22] Kong L, Wang C, Zheng H, et al. Defect-induced yellow color in
有分散效果好,高效的光催化剂是今后的研究重点。 Nb-doped TiO 2 and its impact on visible-light photocatalysis[J].
Journal of Physical Chemistry C, 2015, 119(29): 16623-16632.
参考文献: [23] Natalia S G, Mariana B S, Edgardo N D. Effects of divalent cations,
EDTA and chitosan on the uptake and photoinactivation of
[1] Zhang Teng Fei (张腾飞), Wang Ming Zhi (王明智), Wang Yi Ru escherichia coli mediated by cationic and anionic porphyrins[J].
(王一茹), et al. Effect of Ni precursors on the performance of Photodiagnosis & Photodynamic Therapy, 2015, 12(1): 67-75.