Matussin Shaidatul Najihah, Khan Fazlurrahman, Harunsani Mohammad Hilni, Kim Young-Mog, Khan Mohammad Mansoob
Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
Institute of Fisheries Science, Pukyong National University, Busan 48513, Republic of Korea.
Heliyon. 2024 Jun 8;10(12):e32719. doi: 10.1016/j.heliyon.2024.e32719. eCollection 2024 Jun 30.
Microwave-assisted synthesis method was used to prepare europium hydroxide (Eu(OH)) and different percentages of 1, 5, and 10 % nickel-doped Eu(OH) (Ni-Eu(OH)) nanorods (NRs). X-ray diffraction study showed a hexagonal phase with an average crystallite size in the range of 21 - 35 nm for Eu(OH) and Ni-Eu(OH) NRs. FT-IR and Raman studies also confirmed the synthesis of Eu(OH) and Ni-Eu(OH). The synthesized materials showed rod-like morphology with an average length and diameter between 27 - 50 nm and 8 - 13 nm, respectively. The band gap energies of Ni-Eu(OH) NRs were reduced (4.06 - 3.50 eV), which indicates that the doping of Ni ions has influenced the band gap energy of Eu(OH). The PL study exhibited PL quenching with Ni doping. The photocatalytic degradation of 4-nitrophenol (4-NP) by the synthesized materials under UV light irradiation was investigated, in which 10 % Ni-Eu(OH) NRs showed the best response. A kinetic study was also conducted which shows pseudo-first-order kinetics. Based on this, Ni-Eu(OH) NRs have shown a potential to be a UV-light active material for photocatalysis.
采用微波辅助合成法制备了氢氧化铕（Eu(OH)）以及不同百分比（1%、5%和10%）的镍掺杂氢氧化铕（Ni-Eu(OH)）纳米棒（NRs）。X射线衍射研究表明，Eu(OH)和Ni-Eu(OH)纳米棒为六方相，平均晶粒尺寸在21 - 35纳米范围内。傅里叶变换红外光谱（FT-IR）和拉曼光谱研究也证实了Eu(OH)和Ni-Eu(OH)的合成。合成材料呈现出棒状形态，平均长度和直径分别在27 - 50纳米和8 - 13纳米之间。Ni-Eu(OH)纳米棒的带隙能量降低（4.06 - 3.50电子伏特），这表明镍离子的掺杂影响了Eu(OH)的带隙能量。光致发光（PL）研究表明镍掺杂导致PL猝灭。研究了合成材料在紫外光照射下对4-硝基苯酚（4-NP）的光催化降解，其中10%的Ni-Eu(OH)纳米棒表现出最佳响应。还进行了动力学研究，结果显示为伪一级动力学。基于此，Ni-Eu(OH)纳米棒显示出作为光催化紫外光活性材料的潜力。
