US 11,673,119 B2
Preparation method and application of metal bismuth deposited bismuth-based photocatalyst
Chuanyi Wang, Xi'an (CN); Qiuhui Zhu, Xi'an (CN); and Ting Gao, Xi'an (CN)
Assigned to Shaanxi University of Science & Technology, Xi'an (CN)
Filed by Shaanxi University of Science and Technology, Xi'an (CN)
Filed on Jan. 12, 2021, as Appl. No. 17/146,983.
Claims priority of application No. 202010898905.0 (CN), filed on Aug. 31, 2020.
Prior Publication US 2022/0062865 A1, Mar. 3, 2022
Int. Cl. B01J 23/00 (2006.01); B01J 23/18 (2006.01); B01D 53/86 (2006.01); B01J 35/00 (2006.01); B01J 35/06 (2006.01); B01J 37/04 (2006.01); B01J 37/06 (2006.01); B01J 37/10 (2006.01); B01J 37/16 (2006.01)
CPC B01J 23/18 (2013.01) [B01D 53/8628 (2013.01); B01J 35/004 (2013.01); B01J 35/06 (2013.01); B01J 37/04 (2013.01); B01J 37/06 (2013.01); B01J 37/10 (2013.01); B01J 37/16 (2013.01); B01D 2255/2096 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/40 (2013.01); B01D 2255/802 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of forming a bismuth-based catalyst, comprising:
a) mixing an inorganic alkali compound, a bismuth source compound, a transition metal precursor, and a reducing agent in an aqueous solution to form a bismuth precursor liquid, wherein one or more of
i. the bismuth source compound is one or more of bismuth nitrate, bismuth hydroxide, bismuth acetate, or hydrate thereof,
ii. the transition metal precursor is one or more of tetrabutyl titanate (C16H36O4Ti), titanium tetrachloride (TiCl4), tantalum pentoxide (Ta2O5) and niobium pentoxide (Nb2O5), and
iii. the reducing agent is one or more of hydrated hydrazine (H6N2O), sodium borohydride (NaBH4), glucose (C6H12O6), and ascorbic acid (C6H8O6); and
b) hydrothermally reacting the bismuth precursor liquid at a conversion temperature for a conversion time to produce the bismuth-based catalyst.