Anticorrosion and dispersive adsorption studies of natural andrographolide on carbon steel in acid-chloride environments

doi:10.1016/j.bioelechem.2021.107840

KIB OpenIR

	Anticorrosion and dispersive adsorption studies of natural andrographolide on carbon steel in acid-chloride environments
	Emori,Wilfred ; Bassey,Victoria M.; Louis,Hitler ; Okonkwo,Paul C.; Zhao,Shixiong ; Wei,Kun ; Okafor,Peter C.; Wan,Jie ; Cheng,Chun-Ru
	2021
发表期刊	BIOELECTROCHEMISTRY
ISSN	1567-5394
卷号	141 页码:107840
摘要	Andrographolide, a bioactive naturally occurring labdane diterpenoid with outstanding antioxidant effects in medicine, has been isolated and purified from Andrographis paniculata, and applied in acid chloride environments for the corrosion protection of carbon steel. Upon isolation, the phytochemical was identified by NMR and FTIR, while its corrosion inhibition evaluation was achieved by combined electrochemical and gravimetric experiments. The adsorption of andrographolide on carbon steel was examined by SEM, FTIR, and 3D surface measurement, and computational studies were used to describe the adsorption characteristics and properties. The experimental measurements revealed that andrographolide is an effective mixed-type corrosion inhibitor whose efficiency was dependent on both its concentration and the temperature of the environment, with maximum inhibition efficiency of 92.4% recorded for 2.0 g/L andrographolide after 48 hat 318 K. The adsorption of andrographolide and its anticorrosion capacity on carbon steel surface was confirmed by the employed surface analytical techniques, while molecular electrostatic potential, conceptual density functional theory, and molecular dynamics simulation predicted the quantum chemical details and binding properties of the phytochemical on Fe (110) surface at different temperatures. (c) 2021 Elsevier B.V. All rights reserved.
关键词	Carbon steel Acid-chloride Phytochemical Electrochemical measurement Gravimetry Computation GREEN CORROSION-INHIBITOR MILD-STEEL XYLOPIA-AETHIOPICA BEHAVIOR PANICULATA PROTECTION PRODUCTS EXTRACTS ALUMINUM MEDIA
DOI	10.1016/j.bioelechem.2021.107840
WOS记录号	WOS:000680452600007
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73703
专题	中国科学院昆明植物研究所
作者单位	1.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China 2.Key Lab Mat Corros & Protect Sichuan Prov, Zigong 643000, Sichuan, Peoples R China 3.Univ Calabar, Computat & Biosimulat Res Grp, Calabar, Nigeria 4.Bassey, Victoria M.; Okafor, Peter C.] Univ Calabar, Dept Pure & Appl Chem, Corros & Electrochem Res Grp, PMB 1115, Calabar, Nigeria 5.Okonkwo, Paul C.] Dhofar Univ, Mech & Mechatron Engn, Salalah, Oman 6.Sichuan Univ Sci & Engn, Coll Chem Engn, Inst Pharmaceut Engn Technol & Applicat, Key Lab Green Chem Sichuan Inst Higher Educ, Zigong 643000, Sichuan, Peoples R China 7.Zigong First Peoples Hosp, Zigong 643000, Sichuan, Peoples R China 8.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Lanhei Rd 132, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Emori,Wilfred,Bassey,Victoria M.,Louis,Hitler,et al. Anticorrosion and dispersive adsorption studies of natural andrographolide on carbon steel in acid-chloride environments[J]. BIOELECTROCHEMISTRY,2021,141:107840.
APA	Emori,Wilfred.,Bassey,Victoria M..,Louis,Hitler.,Okonkwo,Paul C..,Zhao,Shixiong.,...&Cheng,Chun-Ru.(2021).Anticorrosion and dispersive adsorption studies of natural andrographolide on carbon steel in acid-chloride environments.BIOELECTROCHEMISTRY,141,107840.
MLA	Emori,Wilfred,et al."Anticorrosion and dispersive adsorption studies of natural andrographolide on carbon steel in acid-chloride environments".BIOELECTROCHEMISTRY 141(2021):107840.