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navy062
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[交流]
【求助】溶液配制是經(jīng)常出現(xiàn)的劑量問(wèn)題不太明白 望各位前輩指點(diǎn)一下 已有2人參與
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文獻(xiàn)原文:These freshly cleaned ITO glasses were used to deposit a thin layer of TiO 2 of thickness ∼ 30 nm by immersing the substrate in a solution containing 0.1 M (NH 4 ) 2 TiF 6 and 0.2 M H 3 BO 3 for 30 min at 25 ° C. The substrates were then spin coated by 0.60 mol L - 1of Zn(CH 3 COO) 2 · 2H 2 O in a 2-methoxyethanol/monoethano- lamine to form ∼ 50 nm thick seed layer of ZnO, followed by heat treatment at 300 ° C for 10 min to obtain dense and transparent seed layers. (2) ZnO template growing. The seeded substrates were placed in an aqueous solution containing 0.015 M Zn(NO 3 ) 2 and 0.015 M hexamethylenetetramine at 95 ° C for 2 h. Subsequently, the resultant films were thoroughly rinsed with deionized water (DI) to remove any residual salt or amino complex and dried with compressed air. (3) TiO 2 nanotube forming. The synthesized ZnO nanorod arrays on ITO were immersed in aqueous solution consisting of 0.075 M (NH 4 ) 2 TiF 6 and 0.2 M H 3 BO 3 at room temperature for 1.5 h. The resulting TiO 2 nanotubes were then dipped in a 0.5 M H 3 BO 3 solution for 1 h to remove any residual ZnO. 疑問(wèn):這是制取TiO2NT的文章 實(shí)驗(yàn)要涉及到溶液的配制 ,文章多次出現(xiàn)0.1 M (NH 4 ) 2 TiF 6 \0.2 M H 3 BO 3(紅色字體標(biāo)注的"M"是物質(zhì)的量還是物質(zhì)濃度) ,但文章中也出現(xiàn)了一處mol/L(綠色字體)我疑惑的是它(我指的是"M")是針對(duì)的溶液的體積是1升呢還是1毫升呢? 也就是我不明白其配制的溶液的濃度。以后寫(xiě)文章也要這么寫(xiě)么,還望前輩和高手指點(diǎn)! |
鐵桿木蟲(chóng) (正式寫(xiě)手)
專(zhuān)業(yè)殺手
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mol/L Although the preferred unit for concentration is mol dm-3, because 1 dm3 is equal to 1 litre (L), concentration may also be quoted as mol/L, mol/dm3, mol L-1, or even just ‘M’. 2 M sulfuric acid is therefore sulfuric acid with a concentration of 2 moles per litre. International convention however recommends that this use of ‘M’, and the use of the term ‘molarity’ instead of concentration, be discontinued as M is the notation commonly used for molar mass. [ Last edited by tj800920 on 2011-3-16 at 10:14 ] |
鐵桿木蟲(chóng) (正式寫(xiě)手)
專(zhuān)業(yè)殺手
銅蟲(chóng) (小有名氣)
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