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"ABSTRAKReflux of trimethylsilyl trichloroacetate and an alkene with the addition of a phase transfer catalyst (4 mol.%) and solid, dry potassium fluoride in an inert nonpolar solvent (toluene, chloroform, or dichloromethane) leads to dichlorocarbene adducts. This is a non-basic mild method, which can easily be carried out. "

"ABSTRAKPada penelitian ini nanomaterial Nd2O3-CdO berhasil disintesis dengan menggunakan ekstrak daun ketapang (Terminalia catappa) sebagai sumber basa (-OH) dan capping agent. Nanopartikel Nd2O3, CdO, dan nanomaterial yang terbentuk selanjutnya dikarakterisasi menggunakan instrumentasi Spektrofotometer UV-Vis, DRS, FTIR, XRD, PSA, TEM-SAED, dan SEM-EDX. Karakterisasi dengan XRD membuktikan bahwa nanopartikel Nd2O3 memiliki struktur kristal heksagonal, CdO dengan bentuk kubik, sedangkan nanomaterial Nd2O3-CdO memiliki puncak khas gabungan kristal keduanya. Berdasarkan karakterisasi TEM, diketahui bahwa nanomaterial Nd2O3-CdO memiliki ukuran 80 nm dengan bentuk oval. Karakterisasi dengan UV-Vis DRS membuktikan band gap nanomaterial Nd2O3-CdO sebesar 2,8 eV. Studi aktivitas fotokatalitik nanomaterial Nd2O3-CdO diamati dengan degradasi metilen biru menggunakan radiasi sinar tampak. Persentase degradasi untuk nanopartikel Nd2O3, CdO dan nanomaterial Nd2O3-CdO masing-masing adalah 29,74%; 35,17%; dan 71,97% selama 2 jam waktu penyinaran. Perhitungan kinetika reaksi fotodegradasi metilen biru didapatkan bahwa reaksi mengikuti kinetika pseudo orde satu.

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ABSTRACT In this study, the synthesis of Nd2O3-CdO nanomaterials was successfully performed using ketapang leaf (Terminalia catappa) extract as a base source (-OH) and capping agent. The synthesized nanoparticles and nanomaterials were characterized with spektrophotometer UV-Vis, UV-Vis-DRS, FTIR, XRD, PSA, TEM-SAED and SEM-EDX instrumentation. Characterization with XRD proves that Nd2O3-NPs nanoparticles have a hexagonal crystal structure, CdO NPs have an cube crystal structure, whereas Nd2O3-CdO nanomaterials have their own distinctive combined crystal peak. Based on TEM characterization, it is known that the Nd2O3-CdO nanomaterials have a size of 80 nm with ovale shape. Characterization with UV-Vis DRS has proven that the Nd2O3-CdO nanomaterials have band gap energy of 2.8 eV. The study of photocatalytic activity of Nd2O3-CdO nanomaterials were observed with methylene blue degradation using visible light radiation. Percentages of degradation for Nd2O3, CdO and Nd2O3-CdO nanomaterials were 29,74%, 35,17% and 71,97%. "