Open AccessStudy on the adsorption-photocatalysis properties of g-C3N4/diatomite in the treatment of colour organic compound Rhodamine B
Author(s) -
Minh-Hoang Nguyen,
Thi Mo Nguyen,
Thi Lan Phung,
Van Tien Nguyen,
Hoang Hao Nguyen,
Minh Cam Le,
Ngoc Ha Nguyen
Publication year - 2021
Publication title -
tạp chí khoa học và công nghệ việt nam (b, online) (vietnam journal of science and technology - most)/tạp chí khoa học và công nghệ việt nam (điện tử)/tạp chí khoa học và công nghệ việt nam (b, print) (vietnam journal of science and technology - most)
Language(s) - English
Resource type - Journals
eISSN - 2615-9759
pISSN - 1859-4794
DOI - 10.31276/vjst.63(11db).35-41
Subject(s) - rhodamine b , photocatalysis , adsorption , bifunctional , graphitic carbon nitride , degradation (telecommunications) , catalysis , kinetics , materials science , carbon nitride , chemical engineering , chemistry , nuclear chemistry , organic chemistry , telecommunications , physics , quantum mechanics , computer science , engineering
This paper reports the results of the study on the adsorption - photocatalytic degradation of Rhodamine B (RhB) on graphitic carbon nitride g-C3N4 and g-C3N4dispersed on diatomite with 5, 10, 15, and 20% loading (%wt). The bare g-C3N4 exhibits good photocatalytic activity for RhB degradation but weak RhB adsorption. The apparent kinetics of RhB photocatalytic degradation is of order 1/2 regard to RhB. Increasing adsorption - catalysis effect is observed as g-C3N4 is dispersed on diatomite. This potential bifunctional material is capable of both adsorbing and catalysing RhB treatment. The optimum g-C3N4 content on diatomite is 15%.