Dispersive adsorption and anticorrosion properties of natural capsaicin on Q235 steel in mixed H2SO4 and NaCl environment: Characterization, experimental and theoretical studies

doi:10.1016/j.scp.2023.101042

IMR OpenIR

	Dispersive adsorption and anticorrosion properties of natural capsaicin on Q235 steel in mixed H2SO4 and NaCl environment: Characterization, experimental and theoretical studies
	Emori, Wilfred 1,2; Louis, Hitler 3; Okonkwo, Paul C.4; Njoku, Demian I.5,6; Edet, Henry O.3; Okafor, Peter C.7; Cheng, Chun-Ru 2,5,8,9
通讯作者	Emori, Wilfred(wemori@suse.edu.cn) ; Njoku, Demian I.(demianifeanyi@gmail.com) ; Cheng, Chun-Ru(pharmaceutics@163.com)
	2023-05-01
发表期刊	SUSTAINABLE CHEMISTRY AND PHARMACY
卷号	32 页码:18
摘要	Although traditional corrosion inhibitors have demonstrated immense relevance in metal protec-tion for many years now, issues relating to their moderate to high toxicities, non-biodegradability, and cost-effectiveness have persisted. For these reasons, bio-based corrosion in-hibitors are gathering significant research attention and have shown great potentials in the corro-sion suppression of metals while being relatively cheap and eco-friendly. This study focuses on the anticorrosion and adsorption properties of natural capsaicin isolated from Capsicum annuum L. as a bio-based corrosion inhibitor for Q235 steel in a mixed acid and chloride system (0.25 M H2SO4 + 0.5 M NaCl). FTIR and NMR techniques afforded the characterization and identifica-tion of the phytocompound. Electrochemical and gravimetric measurements were employed for anticorrosion evaluations. 3D surface profilometer, SEM, and water contact angle examinations provided adsorption proof for capsaicin on steel surface. XPS provided insights into the corrosion suppression mechanism of capsaicin. Computational techniques allowed the description of the adsorption characteristics, molecular interactions, molecular orientations and binding energies of capsaicin on steel substrate. Having a maximum inhibition performance of 94.8% at 298 K, cap-saicin was classified as a functional mixed-type corrosion inhibitor that is reliant on concentra-tion and surrounding temperature for its effectiveness. While also validating the results from wa-ter contact angle measurements, 3D profiling, and SEM, XPS results disclosed that the interac-tions of capsaicin with steel surface leading to its adsorption and anticorrosion effect involved both physisorption and chemisorption processes, and this was in perfect correlation with the Langmuir monolayer adsorption model.
关键词	Phytochemical Adsorption Capsaicin Q235 steel Electrochemistry Computation
资助者	Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities ; Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education ; Central Guidance on Local Science and Technology Development Fund of Sichuan Province
DOI	10.1016/j.scp.2023.101042
收录类别	SCI
语种	英语
资助项目	Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities[2019JXZ02] ; Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education[LZJ18202] ; Central Guidance on Local Science and Technology Development Fund of Sichuan Province[2021ZYD0062]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Environmental Sciences
WOS记录号	WOS:001001245400001
出版者	ELSEVIER
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178133
专题	中国科学院金属研究所
通讯作者	Emori, Wilfred; Njoku, Demian I.; Cheng, Chun-Ru
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.Dhofar Univ, Mech & Mechatron Engn, Salalah, Oman 5.Hong Kong Metropolitan Univ, Sch Sci & Technol, Dept Appl Sci, Good Shepherd St, Ho Man Tin, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Ctr Corros & Protect Mat, Shenyang 110016, Peoples R China 7.Univ Calabar, Dept Pure & Appl Chem, Corros & Electrochem Res Grp, PMB 1115, Calabar, Nigeria 8.Sichuan Univ Sci & Engn, Inst Pharmaceut Engn Technol & Applicat, Key Lab Green Chem Sichuan Inst Higher Educ, Coll Chem Engn, Zigong 643000, Sichuan, Peoples R China 9.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochemistry & Plant Resources Wes, Lanhei Rd 132, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Emori, Wilfred,Louis, Hitler,Okonkwo, Paul C.,et al. Dispersive adsorption and anticorrosion properties of natural capsaicin on Q235 steel in mixed H2SO4 and NaCl environment: Characterization, experimental and theoretical studies[J]. SUSTAINABLE CHEMISTRY AND PHARMACY,2023,32:18.
APA	Emori, Wilfred.,Louis, Hitler.,Okonkwo, Paul C..,Njoku, Demian I..,Edet, Henry O..,...&Cheng, Chun-Ru.(2023).Dispersive adsorption and anticorrosion properties of natural capsaicin on Q235 steel in mixed H2SO4 and NaCl environment: Characterization, experimental and theoretical studies.SUSTAINABLE CHEMISTRY AND PHARMACY,32,18.
MLA	Emori, Wilfred,et al."Dispersive adsorption and anticorrosion properties of natural capsaicin on Q235 steel in mixed H2SO4 and NaCl environment: Characterization, experimental and theoretical studies".SUSTAINABLE CHEMISTRY AND PHARMACY 32(2023):18.